I've gotton my implanon inserted last December 2010. Some days later i had a period for about two weeks every month til i started to have sex. i had sex on February 16. i havnt had period since then. i been feeling like im pregnant all over again. i already have one child. i dont need another rite now. i get morning sickness some times i threw up out of control the other night. every time i take a home pregnancy test it tells me im not pregnant. but that what it said the first time while i was pregnant with my son.